怎么用mathematica做矩阵数值分析（知识打卡20）

怎么用mathematica做矩阵数值分析（知识打卡20）首先对线上线下协调后的销售价格进行数值分析，这里小编即用到了plot[]也用到了Manipulate[]交互函数，在使用时记得函数首字母是大写，不然会报错的，结果如下图所示：Read the original text and check the basic values:绘制函数图像需要用到的内置函数为plot[]，其实在这里由于涉及参数变化，我们还可能用到Manipulate[]交互函数。The built-in function used to draw the function image is plot []. In fact we may also use the manual [] interaction function due to parameter changes.阅读原文，查看基本数值：

分享兴趣，传播快乐，增长见闻，留下美好。亲爱的您，这里是LearingYard学苑！今天小编为大家带来Mathematica在动态博弈中的具体应用8！

Share interest spread happiness increase knowledge and leave beautiful.Dear you This is the LearingYard Academy!Today the editor brings you Application of Mathematica in Dynamic Game 8.Welcome your visit!

内容提要

上一期的内容帮助我们解决了最终的模型求解，在文章后半部分还进行了数值分析，即用具体的实际数据来检验模型是否正确，以及是否与我们的理论分析保持一致的结果，而且还能够对过于复杂的表达式进行详细分析，得到更深入的分析结论！

The content of the last issue helped us solve the final model solution. In the second half of the article we also carried out numerical analysis that is using specific actual data to test whether the model is correct and whether the results are consistent with our theoretical analysis and we can also analyze too complex expressions in detail to get more in-depth analysis conclusions!

绘图过程

绘制函数图像需要用到的内置函数为plot[]，其实在这里由于涉及参数变化，我们还可能用到Manipulate[]交互函数。

The built-in function used to draw the function image is plot []. In fact we may also use the manual [] interaction function due to parameter changes.

阅读原文，查看基本数值：

Read the original text and check the basic values:

首先对线上线下协调后的销售价格进行数值分析，这里小编即用到了plot[]也用到了Manipulate[]交互函数，在使用时记得函数首字母是大写，不然会报错的，结果如下图所示：

First make a numerical analysis of the sales price after online and offline coordination. Here both plot [] and manual [] interactive functions are used. Remember that the initial letter of the function is capitalized when using it otherwise an error will be reported. The results are shown in the figure below:

使用交互函数之后，我们只需要确定每一个参数的取值范围，就可以，不用将表达式中的参数用实数值进行一个一个替换，直接通过调整上图中左边区域的控件即可实现值得确定。同理，得到线下价格变化曲线：

After using the interactive function we only need to determine the value range of each parameter. Instead of replacing the parameters in the expression with real values one by one we can directly determine the value by adjusting the controls in the left area in the figure above. Similarly the offline price change curve is obtained:

剩余的分析与前面原理相同，所以就不做过多叙述，感兴趣的伙伴可以自己去尝试一下。接下里我们就看看如何作两个函数在同一个坐标轴中，形成对比分析，以下图为例：

The rest of the analysis is the same as the previous principle so we won't make too much description. Interested partners can try it by themselves. Next let's take a look at how to make two functions in the same coordinate axis to form a comparative analysis. The following figure is an example:

这种图形分析，基本步骤与前面相似，只需要增加一个函数表达式的绘制即可，如图所示：

The basic steps of this graphic analysis are similar to the previous ones and only one function expression needs to be added as shown in the figure:

数值分析基本步骤以及函数图像绘制就结束了，具体分析可以去细读原文。

The basic steps of numerical analysis and function image drawing are over. For specific analysis you can read the original text carefully.

END

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That's it for today's sharing.If you have unique ideas about today’s article please leave us a message Let us meet tomorrow I wish you a happy day today!

参考资料：

[1]谷歌翻译、百度百科；

[2]张伸 孟庆春 安国政. 电商平台扣点率影响下的双渠道供应链协调定价研究[J]. 中国管理科学 2019 27(10): 44-55.

部分资料图片来源于百度百科词条，其余内容由LearningYard学苑原创，如有侵权请沟通。